Which is not a form of light found on the electromagnetic spectrum? a) x-ray, b) gamma rays, c) am radio waves, d) alpha radiation

Which technically is nasa developing that will astronauts reach mars

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Which is a function performed by stem cells in the skin a. replacing lost skin cells b. making cells for the intestines c. growing new organs d. differentiating into brain cells plz apex